# a=[5,4,6,9,8,5,3,69,11]
# for i in range(len(a)-1):
#     for j in range(len(a)-1-i):
#         # for k in range(len(a)-1-i):
#             if a[j+1]>a[j]:
#                 a[j],a[j+1]=a[j+1],a[j]
# print(a)
# b=sorted(a)
# c=a.sort()
# print(b)
# print(c)

# 有问题
# nums1={1,2,3,4}
# nums2={5,6,7,8}
# nums1.extend(nums2)
# print(nums1)

# 列表推导式
k=[i for i in range(100) if i%2==0]
print(k)
s=[(i,j) for i in range(3,4)
   for j in range(10,14)]
print(s)